Joined Cases C-778/21 P and C-798/21 P: Judgment of the Court (Grand Chamber) of 4 October 2024 – European Commission (C-778/21 P) and Council of the European Union (C-798/21 P) v Front populaire pour la libération de la Saguia-el-Hamra et du Rio de oro (Front Polisario) and Others (Appeal – External action – International agreements – Sustainable Fisheries Partnership Agreement between the European Union and the Kingdom of Morocco – Decision on the conclusion of that agreement and the implementation protocol thereto – Allegations of infringements of international law resulting from the applicability of that agreement to the waters adjacent to Western Sahara – Action for annulment – Admissibility – Capacity to be a party to legal proceedings – Locus standi – Condition that an applicant must, in certain cases, be directly and individually concerned by the measure in question – Principle of the relative effect of treaties – Principle of self-determination – Non-self-governing territories – Article 73 of the Charter of the United Nations – Discretion of the Council of the European Union – Customary international law – General principles of EU law – Consent of the people of a non-self-governing territory which holds a right to self-determination as a third party to an international agreement)